Synthetic aperture sonar (SAS) is a form of sonar in which sophisticated post-processing of sonar data is used in ways closely analogous to synthetic aperture radar. Synthetic aperture sonars combine a number of acoustic pings to form an image with much higher along-track resolution than conventional sonars. The along-track resolution can approach half the length of one sonar element, though is downward limited by 1/4 wavelength. The principle of synthetic aperture sonar is to move the sonar while illuminating the same spot on the sea floor with several pings. When moving along a straight line, those pings that have the image position within the beamwidth constitute the synthetic array. By coherent reorganization of the data from all the pings, a synthetic aperture image is produced with i
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| - Sonar aperture sintetis (in)
- Synthetic aperture sonar (en)
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| - Sonar aperture sintetis atau synthetic aperture sonar (SAS) adalah sebuah bentuk sonar yang canggih pasca - pengolahan data sonar yang digunakan dalam cara erat analog dengan radar aperture sintetis. Sonars aperture sintetis menggabungkan sejumlah ping akustik untuk membentuk sebuah gambar dengan resolusi lebih tinggi dari sonars konvensional, biasanya 10 kali lebih tinggi. Prinsip aperture sonar sintetis adalah untuk memindahkan sonar sepanjang garis dan menerangi tempat yang sama di dasar laut dengan beberapa ping. Ini menghasilkan array sintetis sama dengan jarak yang ditempuh. Dengan reorganisasi koheren data dari semua ping, gambar aperture sintetis diproduksi dengan resolusi track ditingkatkan bersama. Berbeda dengan sonar konvensional sisi-scan, pengolahan SAS memberikan resolusi be (in)
- Synthetic aperture sonar (SAS) is a form of sonar in which sophisticated post-processing of sonar data is used in ways closely analogous to synthetic aperture radar. Synthetic aperture sonars combine a number of acoustic pings to form an image with much higher along-track resolution than conventional sonars. The along-track resolution can approach half the length of one sonar element, though is downward limited by 1/4 wavelength. The principle of synthetic aperture sonar is to move the sonar while illuminating the same spot on the sea floor with several pings. When moving along a straight line, those pings that have the image position within the beamwidth constitute the synthetic array. By coherent reorganization of the data from all the pings, a synthetic aperture image is produced with i (en)
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| - Sonar aperture sintetis atau synthetic aperture sonar (SAS) adalah sebuah bentuk sonar yang canggih pasca - pengolahan data sonar yang digunakan dalam cara erat analog dengan radar aperture sintetis. Sonars aperture sintetis menggabungkan sejumlah ping akustik untuk membentuk sebuah gambar dengan resolusi lebih tinggi dari sonars konvensional, biasanya 10 kali lebih tinggi. Prinsip aperture sonar sintetis adalah untuk memindahkan sonar sepanjang garis dan menerangi tempat yang sama di dasar laut dengan beberapa ping. Ini menghasilkan array sintetis sama dengan jarak yang ditempuh. Dengan reorganisasi koheren data dari semua ping, gambar aperture sintetis diproduksi dengan resolusi track ditingkatkan bersama. Berbeda dengan sonar konvensional sisi-scan, pengolahan SAS memberikan resolusi bersama - track range- independen. Pada rentang maksimum resolusi dapat besarnya lebih baik dari sonars samping memindai.
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- Synthetic aperture sonar (SAS) is a form of sonar in which sophisticated post-processing of sonar data is used in ways closely analogous to synthetic aperture radar. Synthetic aperture sonars combine a number of acoustic pings to form an image with much higher along-track resolution than conventional sonars. The along-track resolution can approach half the length of one sonar element, though is downward limited by 1/4 wavelength. The principle of synthetic aperture sonar is to move the sonar while illuminating the same spot on the sea floor with several pings. When moving along a straight line, those pings that have the image position within the beamwidth constitute the synthetic array. By coherent reorganization of the data from all the pings, a synthetic aperture image is produced with improved along-track resolution. In contrast to conventional side-scan sonar, SAS processing provides range-independent along-track resolution. At maximum range the resolution can be magnitudes better than that of side-scan sonars. A 2013 technology review with examples and future trends is also available. For academics, the IEEE Journal of Oceanic Engineering article: Synthetic Aperture Sonar, A Review of Current Status gives an overview of the history and an extensive list of references for the community achievements up to 2009. (en)
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